Support for spinning-spindles



(No Model.)

I J. H. McMULLAN.

SUPPORT FOR SPINNING SPINDLES.

Patented Jan. 28, 1890.

lNVENTU RI.

WITNESSES;

b" filmmaw PATENT VQFFICE.

JAMES H. MCMULLAN, OF PORTLAND,

MAINE, ASSIGNOR TO THE SAIVYER SPINDLE COMPANY, OF BOSTON,MASSACHUSETTS.

SUPPOQT FOR SPlNNING-SPINDLES'.

SPECIFICATION forming part of Letters Patent No. 420,084, dated January28, 1890.

I Application filed November 14, 1837- Serial No. 255,072. [No model.)

To all whom it may concern.-

Be it known that 1, JAMES H. MOMULLAN, a citizen of the United States,residing at Portland, in the county of Cumberland and State of Maine,have invented certain new and useful Improvements in Supports forSpinning- Spindles, of which the following is a specification.

My invention is an improvement relating more especially to suchspinningdevices as are secured to a single spindle-supporting rail, andalso to that class of spinning devices the rotating parts of which areso supported that they may be deflected to a certain extent by theeffect of an unbalanced load; and it consists of the construction andcombination of parts, as hereinafter set forth.

My invention is illustrated in the accompanying drawings, in which-Figure 1 is an elevation, partly in central vertical section, of asingle-rail spinning-spindle with the supports therefor. Fig. 2 is anelevation of the spindle with a sleeve-whirl attached thereto. Fig. 3 isan elevation of that form of step-support which I prefer to use. Fig. 4is a central sectional elevation of a spindle-step with a portion of thespindle that is supported therein, and Fig. 5 is a plan of said step.

Similar reference-numbers refer to similar parts in all of the views.

In the drawings, 1 represents the bolsterbearin g support,which ispreferably provided with the external collar 2, the nut 3, and thewasher 4, said nut engaging with a screwthread upon the exterior of saidsupport. I prefer to form an oil-chamber 5 in the upper part of thecollar 2, as shown,and to form an oil-conduit 6 through the side of thesupport 1 and communicating with said chamber. Whenever it may bedesired to do so, a washer 18 maybe placed encircling the elevated part7 of the bolster-bearing support and covering the top of the oil-chamber5 in the usual manner.

At the base of the support 1 is secured the step-case S in anyconvenient manner, the construction which I prefer being shown in thedrawings. This preferred form of stepcase is provided with asleeve 9,screw-threaded in its interior and which engages with a screwthread uponthe surface of the support 1. The step-case of this form is usuallyprovided with flattened surfaces 10, which are adapted to receive awrench. Below the bottom of the threaded part of the sleeve 9 is thestep-well 11, in which the step 12 is supported. The step-case when madein this manner forms an oil-cup of considerable size,which receives theoil set free when the step is removed for examination or for the purposeof being cleansed, and thus prevents other parts of the spinning-frameand the floor from becoming soiled by the discolored oil at such times.

The step-case and step are preferably so made and combined that the axisof the step is always, though slightly variable in position, maintainedin substantial alignment with the axis of said step-case by the walls ofthe step -receiving recess within said case. When the step and thestep-case are thus made and combined, as illustrated in the drawings,the removal of the step-case to permit of examining the step andcleansing it and said case and the replacing of the stepcase may beeasily effected without danger of the loss of any of the parts or ofinjury to any of the surroundings by the discolored oil in said case andthe bolster-bearing support to which it is usually attached. The step 12is made of such a size with respect to the other parts of the structureand of such a form that it maybe moved laterally to a slight extent inall directions, and it is preferably provided with one or more oil-holes13,1eading from the space surrounding the step to the cavity in theinterior thereof in which the spindle is supported. Said cavity ispreferably made of the shape of the spindle, and

also a little larger than said spindle, as shown in Fig. 4; or, in otherwords, the spindle preferably fits loosely in said step. I prefer thatone or both of the surfaces in contact at the bottom of the step 12-thatis, the bottom of said step and the top of the upper of the disks14should be plane, to the end that said step may easily yield laterallyto a slight extent and with equal freedom in all directions upon theapplication of a force thereto in a lateral direction. I prefer also,although this construction is not absolutely necessary, to make thestep-well 11 so deep that several IOC disks 14 may be placed thereinbelow the bottom of the step 12. These disks may be made, when used, ofany suitable material; but I prefer to form one or more of the lowerdisks 1n the series of leather or some other elastic material, in orderto prevent the vibrations lnduced in the spindle-step 12 by the spindle15 from being communicated to the bolsterbearing support 1, and thenceto the spindlesupporting rail 16. These disks 14 may be entirelydispensed with whenever it is desirable to do so, if the bottom of thestep-well 11 is properly shaped. The lower part of the spindle 15 ispreferablymade of a small diameter and terminating in a sharp point,although any other suitable construction of these parts may be adoptedat the will of the maker of the device to meet any unusual requirements.When the lower end of the spindle is made of a small diameter, as shown,the spindle increases in diameter as the bolster-bearing is approachedfrom its lower end. The bolster-bearing is preferably cylindrical. Thespindle is preferably provided with a sleeve-whirl, the plane of whoseband-groove crosses said bearing in its bolster. The fit of the spindle15 in its bolster-bearing should be a rather loose one, in order thatthe blade or upper unsupported end of the spindle may be able to yieldslightly to the force exerted thereon by an unbalanced load. The centralhole in the bolster-bearing support 1 is shown as a cylindrical one forthe greater part of its extent, and slightly larger than the diameter ofthe spindle. I prefer to form near the upper part of the bolster-bearingan oil-retaining groove 17, to prevent oil in considerable quantitiesfrom passing over the top of the bolster 1 when the spindle is beingused.

I have found that a spindle of the kind described runs very wellindeedat the usual speedsat which such spindles are operated, and thatit is perfectly practicable to remove the step-case for the purpose ofcleansing it and removing the sediment which is intentionally allowed tosettle therein below the lower end of the spindle, even when the spindleis in operation and spinning yarn.

I prefer to make the fit of the lower end of the bolster-bearing support1 with the shoulder of the step-case with which it is usually in contactso perfect that the joint between them may easily be made impervious tooil by screwing up the step-case tightly, although a soft metallic orother suitable washer may sometimes be advantageously inserted at 2318oint as an equivalent for such perfect The in uchdesired and so-calledgyrating capacity of spindles is possessed by my invention to aconsiderable degree on account of the looseness of the fit of thespindle in the step and bolster bearings and of the freedom of the stepto move laterally to a slight extent in all directions. When the step issupported by a longitudinally-elastic support, as herein described, thespindle runs with Very little jar indeed at the highest desirablespeeds. The form of the lower end of the spindle insures that thebolster-bearing is properly lubricated when there is suflicicnt oil inthe interior of the bolster, the oil being carried upward by the actionupon it of centrifugal force. Another great advantage of the spindle asillustrated is the cheapness of its construction and the ease with whichall its parts are reached for the purposes of examination and cleansing.

I do not desire to limit myself in the use of my invention inall casesto the particular forms of the various parts of the structure which areherein illustrated, since such forms of some of the parts may in somecases be much changed without departing from the invention.

WVhat I herein claim as new, and desire to secure by Letters Patent, is-

1. The combination of a step-case adapted to be attached to and detachedfrom the base of a bolster-bearing support of a vertical spindle andforming when detached an oilcup of considerable size, with a steploosely fitting in a step-receiving recess within said step-case andwith its axis maintained by the walls of said recess in substantialalignment with the axis of said step-case, said step being free to movelaterally in all directions within said step-case, substantially asdescribed, andfor the purposes specified.

2. The combination of a step-case adapted to be attached to and detachedfrom the base of a bolster-bearing support of a vertical spindle andforming when detached an oilcup of considerable size, with a steploosely fitting in a step-receiving recess within said step-case, andwith its axis maintained by the walls of said recess in substantialalignment with the axis of said step-case, said step being free to movelaterally in all directions with respect to said step-case andbeing'supported therein by a longitudinally-elastic step-support,substantially as described, and for the purposes specified.

J AS. H. MOMULLAN.

Witnesses:

BENJ. N. GoonALE, WILLIAM P. MoMULLAN.

ITO

